Connected: An Internet Encyclopedia
RFC 822 - A.3. COMPLETE HEADERS

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### A.3. COMPLETE HEADERS

#### A.3.1. Minimum required

      Date:     26 Aug 76 1429 EDT        Date:     26 Aug 76 1429 EDT
      From:     Jones@Registry.Org   or   From:     Jones@Registry.Org
      Bcc:                                To:       Smith@Registry.Org

Note that the "Bcc" field may be empty, while the "To" field is required to have at least one address.

#### A.3.2. Using some of the additional fields

      Date:     26 Aug 76 1430 EDT
      From:     George Jones<Group@Host>
      Sender:   Secy@SHOST
      To:       "Al Neuman"@Mad-Host,
                Sam.Irving@Other-Host
      Message-ID:  <some.string@SHOST>

#### A.3.3. About as complex as you're going to get

      Date     :  27 Aug 76 0932 PDT
      From     :  Ken Davis <KDavis@This-Host.This-net>
      Subject  :  Re: The Syntax in the RFC
      Sender   :  KSecy@Other-Host
      Reply-To :  Sam.Irving@Reg.Organization
      To       :  George Jones <Group@Some-Reg.An-Org>,
                  Al.Neuman@MAD.Publisher
      cc       :  Important folk:
                    Tom Softwood <Balsa@Tree.Root>,
                    "Sam Irving"@Other-Host;,
                  Standard Distribution:
                    /main/davis/people/standard@Other-Host,
                    "<Jones>standard.dist.3"@Tops-20-Host>;
      Comment  :  Sam is away on business. He asked me to handle
                  his mail for him.  He'll be able to provide  a
                  more  accurate  explanation  when  he  returns
                  next week.
      In-Reply-To: <some.string@DBM.Group>, George's message
      X-Special-action:  This is a sample of user-defined field-names.
                  There could also be a field-name
                  "Special-action", but its name might later be
                  preempted
      Message-ID: <4231.629.XYzi-What@Other-Host>

Next: APPENDIX B. SIMPLE FIELD PARSING

Connected: An Internet Encyclopedia
RFC 822 - A.3. COMPLETE HEADERS